CN2254466Y

CN2254466Y - Key-inserting electronic cipher lock

Info

Publication number: CN2254466Y
Application number: CN 95202250
Authority: CN
Inventors: 郑卫中
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-27
Filing date: 1995-01-27
Publication date: 1997-05-21
Anticipated expiration: 2005-01-27

Abstract

The utility model discloses a key-inserting electronic coded lock, which is an electronic lockset that stores the code by using an electronic component and uses an infrared coding signal as the identification and the unlocking signal. An infrared emitter and an infrared receiver are both encapsulated inside an integrated circuit component (10). The infrared signal is led out and led in by optical fibre (5). So the structure is compact. An electronic coded key which is made into the sizes and the styles of common mechanical keys is inserted into a lock hole to emit and receive the infrared coding signals. The use and the carrying of the key are as convenient as those of the common mechanical keys. While the confidential and antitheft performance reaches a very high degree.

Description

Key insertion type electronic puzzle lock

The present invention is to use the electronic component stored password, and the electric lockset with the identification of infrared coding signal do and the signal of unblanking is commonly referred to " electronic password lock ".

Electronic password lock is divided into lock body and key two parts usually.During use, key sends cipher signal as the signal of unblanking, after lock body receives cipher signal, just with electronic component in the password that stores contrast.If external signal conforms to the internal memory password, just send the signal of unblanking and give electromechanical device, lock is opened.If cipher signal does not conform to, just send alarm signal and give warning device, stop simultaneously receiving any signal, and continue for some time.

At present, the mode that electronic password lock sends password and reception password has modes such as button, infrared emission formula, radio transmission formula and magnetic card type.Owing to use inconvenient and other various shortcoming, be difficult to generally use.Connect strong formula and send password, need user's memory cipher numeral, misremember easily, more number can not be set, stolen a glance at by the onlooker easily again, security performance is very low.Infrared emission formula and radio transmission formula need be carried transmitter, and magnetic card type need carry magnetic card, and be both inconvenient, damages easily again, do not meet people's use habit.People carry bunch of keys usually, and the uncomfortable flimsy transmitter of a pile that carries.

The purpose of this invention is to provide a kind of improved infrared emission formula electronic password lock, the external form of its cipher key, size and using method, all the metal key with the standard machinery lock is identical.

The present invention is achieved in that with metal and makes the substrate that resembles standard machinery key size and shape that pit, groove etc. are set on the substrate, and the electronic component of Electronics Cryptographic Keys is installed on pit, the groove, becomes infrared emission formula cipher key.Lock body has the engagement mechanism of standard machinery lock, and infrared remote receiver places in the lockhole.Key injects the infrared cipher signal of the interior emission of lockhole of lock body.The infrared transmitter of key is to approach the infrared remote receiver of lock body and launch signal, only needs very little power just enough, for example can use button-type lithium cell to make power supply, is convenient to transmitter is made microminiaturization.Infrared-emitting diode and infrared reception triode are with storage, the analysis circuit of cipher signal, be encapsulated in the chip of integrated circuit, in the reception signal input chip and, within the groove of optical fiber plant key plug infrared signal is delivered to the top of key plug with optical fiber sending outside the signal pio chip.The chip of integrated circuit can be done the totally-enclosed encapsulation of moistureproof, anti-electromagnetic interference with metal, with interference and the infringement of avoiding external environment condition.

Electronic cipher storage capacity of the present invention and signal disposal ability only are subjected to the restriction of chip integration, can hold long cipher signal and complicated signal handling procedure, make security performance reach very high degree.The process that the transmits and receives required time of infrared signal is very short, and all correct opening programs can for example be finished in 1/10th seconds in a short period of time, and the user does not feel existence during this period of time when unblanking.The appearance and size of Electronics Cryptographic Keys and using method, almost completely identical with the standard machinery key, use and carry all convenient equally.

Complicated signal handling procedure can provide the present invention multiple functional performance.For example:

1, infrared signal of the present invention approaches and transmits and receives, and cipher key has the ability that receives signal, and the recognition technology of the answer that can access to your password is to improve privacy degrees.Promptly in key chip and lock body chip, store many groups respectively and answer signal.After key sent initial unlatching signal, being checked errorless, lock body was promptly selected some groups of interrogation signals randomly, and key need be done corresponding answer.Through answer errorless after, lock body is just unblanked.If answer is wrong, if the interrogation signal of lock body is wrong, key just refusal is answered and is continued for some time.Like this, though the stranger steal key and have copying equipment, also can only steal initial unlatching signal, extremely difficulty is stolen whole key ciphers.If the answerback of key is wrong, lock body also quits work and continues for some time.Like this, even the stranger has the electronic equipment of " runin lock ", also be difficult to unblank with the method for " runin ".

2, at the hotel, the hotel needs the design of " primary and secondary keys ", that is: each room key can only be opened the lock of door separately, the floor key can be driven the lock of same floor, master key can be driven the lock in each room, bed rearrangement building.The present invention can be easy to reach this requirement.Method is: set up " floor unlocking cipher " and " master key unlocking cipher " in the lock body chip, just can reach this requirement.

Narrate a design example of the present invention below in conjunction with accompanying drawing:

Fig. 1 is the front view of substrate.Fig. 2 is the front view of the cipher key of installation.Fig. 3 is the sectional drawing of integrated circuit component.

The present invention is made up of coded lock and cipher key two parts.The substrate of key is a key shape of making the standard machinery lock with metal.Substrate can be divided into plug portion (1) and shank portion (2).Plug portion (1) is carved with minor groove (4), is used to lay optical fiber (5).Groove (4) next door also has a pit (6), is used to lay micro power switch (7).

Substrate shank portion (2) is provided with two pits (8) (9), be respectively applied for and lay integrated circuit component (10) and button cell (11).There is little screw (14) on pit (8) (9) next door, is used for clam member (13).Launch window (15) and the receive window (16) of the minor groove (4) of laying optical fiber (5) from pit (8) that integrated circuit component (10) is installed to the substrate top.

Integrated circuit component shown in Figure 3 (10) is encapsulated into the shape of similar button cell.It has a columnar metal shell (17).Shell (17) is again the positive pole of integrated circuit component (10) simultaneously.There is a columnar hard edge inner casing (18) the inside of shell (17), IC chip (19) comprise electronics such as crystal oscillator in addition part all place inner casing (18) the inside.It around the chip (19) insulation filler (20) of sealing usefulness.One circular upper cover (21) places above the inner casing (18).Loam cake (21) central authorities are protruding upward, as the negative pole of integrated circuit component (10).There is a circle elastic insulated packing ring (22) at the edge of loam cake (21), is pressing packing ring (22) in the middle of the edge of cylindrical housing (17) is folded to, and by packing ring (22) loam cake (21), inner casing (18) is being compressed.The side of inner casing (18), shell (17) has aperture (23), and emission is drawn from chip (19) with optical fiber (5) with optical fiber and reception, draws shell (17) outside by aperture (23).

Micro power switch (7) and substrate insulation.Two lead-in wires (24) of switch (7) connect the negative pole of integrated circuit component (10) and the negative pole of knob battery (11) respectively.Under normal conditions, the button of switch (7) protrudes in the outside of substrate, and switch (7) disconnects.When key injected lockhole, the inwall of lockhole compressed button, makes switch (7) conducting.After key was transferred to lockhole, button loosened, and switch (7) disconnects.Prior art can provide the structure of power switch to reach this requirement, and this paper no longer narrates.

Integrated circuit component (10) is installed in respectively in two pits (8) (9) of substrate with button cell (11).The mode of installing will make their positive pole and substrate contacts conducting, and negative pole and substrate insulate, and respectively with two leads (24) conducting of power switch (7).Prior art can provide simple side

Claims

1, the utility model belongs to a kind of use electronic component stored password, make the electronic password lock of the identification and the signal of unblanking with the infrared coding signal, this coded lock is divided into lock body and key two parts, it is characterized in that Electronics Cryptographic Keys has a metal substrate that resembles standard machinery key size and shape, substrate is provided with pit (6), (8), (9), and groove (4), the integrated circuit component of Electronics Cryptographic Keys (10), button cell (11), power switch (7) and optical fiber (5) are installed in respectively in these pits and the groove.

2, electronic password lock according to claim 1, it is characterized in that integrated circuit component (10) is built-in with integrated circuit stamen sheet (19), integrated circuit stamen sheet (19) contains storage, the analysis circuit of red place emitting diode, infrared reception triode and cipher signal, exports outside the stamen sheet (19) receiving in the signal input stamen sheet (19) and sending signal with optical fiber (5).

3, according to claim 1,2 described electronic password locks, it is characterized in that integrated circuit component (10) is packaged into the external form of similar button cell, the metal shell (17) of element (10), loam cake (21) are respectively as the positive pole and the negative pole of element (10), IC chip (19) places in the element (10), and optical fiber (5) passes outside housing (17) the side extraction elements (10).

4, according to the described electronic password lock of claim 1., it is characterized in that lock body has the engagement mechanism of standard machinery lock, the infrared emission of lock body and receiving element place in the lockhole, and Electronics Cryptographic Keys injects in the lockhole and transmits and receives the infrared coding signal.

5, according to the described electronic password lock of claim 1., it is characterized in that the power switch (7) of cipher key is placed on the plug portion (1) of key, in the time of in plug (1) injects lockhole, utilize lockhole inwall clamping switch (7) to connect power supply.